Personally i start my car up at least one time throught the winter time. Wait for a warmer day and start car up. let run till nice and warm. This helps battery and charging system componets. Also trans fluid runs throught trans. Water pump turns also. Valve train is changed location. Rubber diaphrams throught out car are moved, distributor ,power brakes , carb power valves.fuel pump, auto trans too. Basically move things that are sitting idle over the winter. Oh ya. I pump my brakes at least 3-4 times over the winter to move diaphrams there to. Please keep fire extimgusher near car and easy to find.